character: Ms. Emily Johnson
topic: Understanding Avogadro's Number
grade: 9
subject: Chemistry
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character: Mr. Tom Harris
topic: Moles and Molecular Mass
grade: 9
subject: Chemistry
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character: Mrs. Linda Smith
topic: The Importance of the Mole in Chemistry
grade: 9
subject: Chemistry
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character: Dr. Sarah Brown
topic: Atom and Mole Calculations
grade: 9
subject: Chemistry
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